CO2METER CM-900 Industrial CO2 Detector User Manual

June 17, 2024
CO2METER

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CO2METER CM-900 Industrial CO2 Detector

Specifications

  • Measurement Range: 0 – 50,000ppm (5%) display
  • Display Resolution: 10ppm at 0~10,000ppm; 0.01% at 1-5%
  • Accuracy: +/-200ppm or +/-10% reading
  • Pressure Dependence: Auto pressure compensation, built-in barometer (50 to 110 kPa)
  • Response Time: CO2 AL1 (TWA), CO2 AL2, CO2 AL3 Sound Alarm
  • Warm-Up Time: Not specified
  • Power Input: Not specified
  • Backup Battery: Not specified
  • Relay 1, Relay 2, Relay 3: Not specified
  • 4-20mA CO2, 4-20mA TEMP: Not specified
  • Dimensions: Not specified
  • Weight: Not specified
  • Ingress Protection: Not specified
  • Temperature Range: Not specified
  • Display Options: Not specified
  • Accuracy: Not specified
  • Response Time: Not specified
  • Temperature Humidity Range: Not specified
  • Storage Temperature: Not specified

Product Usage Instructions

  1. Installation
    Ensure the CO2 Detector is installed in accordance with the guidelines provided in the user manual.

  2. Powering On
    Connect the power source as per the instructions and power on the device.

  3. Monitoring CO2 Levels
    Observe the live ambient carbon dioxide levels displayed on the screen. The display updates every 2 seconds.

  4. Alarms
    Understand the different alarm icons and their corresponding thresholds for CO2 levels. Respond appropriately to alarms triggered.

  5. Calibration
    Refer to page 14 of the manual for calibration instructions when necessary.

  6. Factory Reset
    If needed, follow the reset instructions on page 15 to reset the device to factory settings.

Frequently Asked Questions (FAQ)

  • Q: What should I do if the alarm is triggered?
    A: When an alarm is triggered, ensure proper ventilation, investigate the cause, and take necessary safety precautions.

  • Q: Can the device be operated without professional installation?
    A: It is recommended to have qualified personnel install and service the CO2 Detector for optimal performance and safety.

  • Q: How often should calibration be performed?
    A: Calibration frequency may vary based on usage and environmental conditions. Refer to the manual for guidelines on calibration intervals.

User Manual and Installation Guide

CM- 900
Indus trial CO2 Detector

CO2Meter
105 Runway Drive Ormond Beach, FL 32174 USA
877-678-4259

Warning!

  • This product should only be used as described in this manual. If the equipment is used outside of the manner specified by CO2Meter, the protection provided by the equipment may be diminished. This equipment should be installed/serviced by qualified personnel only.
  • Please contact [email protected] for more information.

CO2METER-CM-900-Industrial-CO2-Detector-fig-16 CO2METER-CM-900-Industrial-CO2-Detector-fig-17

Introduction to the CM-900

The CM-900 Industrial Carbon Dioxide Storage Safety Allam is a (12-24) VDC powered monitor that is designed to reliably and accurately sense the CO2 levels present in confined spaces, harsh environments, or industrial settings. The safety alarm uses nondispersive infrared (NDIR) sensing technology to measure CO2 levels in areas of potential risk. The monitor is designed to notify workers of potential CO2 exposure risks prior to compromising the health or wellbeing of those workers. The CM-900 is equipped with (3) configurable safety alarms that trigger across the 0-5% (or 0-50,000ppm) measurement range. CO2Meter, Inc. is committed to delivering quality safety solutions that allow its partners to operate without the added layer of CO2 safety causing workflow distractions.

Key Features

  • (3) Configurable safety alarms (Audible and Visible)
  • NDIR sensor with extended lifespan
  • Rugged powder coated aluminum enclosure (IP64)
  • Quick-release connectors design to last in harsh environments
  • Push button configuration (NO CONTROL PANEL NEEDED)
  • 4-20mA output for communication with Building Maintenance Systems
  • (3) Dry contact relays triggered by each alarm level (NO or NC)
  • Back-up battery connection available
  • Easy calibration function
  • Barometric pressure compensation
  • Temperature compensation
  • Alarm latching function
  • Internal heating element for improved air flow
  • Strobe Siren accessories available: CM-1029 (Click HERE)
  • Hydrophobic filters to prevent water intrusion

Display

Icons and Symbols

Icon/Symbol Description
CO2 Level Icon: Displays the live ambient carbon dioxide levels of the area

being monitored. Updates every 2 seconds.
DIAG| Technician diagnostics feature. Communication test.
AL1| 1st Alarm Icon: 1st alarm. (5,000TWA)
LED Flash Frequency : 2Hz
AL2|

  • 2nd Alarm Icon: Configurable 2nd alarm. (Default 5000ppm or 0.5% CO2)
  • LED Flash Frequency : 4Hz Buzzer Frequency: 4Hz

AL3|

  • 3rd Alarm Icon: Configurable 3rd alarm. (Default 30,000ppm or 3% CO2)
  • LED Flash Frequency : 6Hz Buzzer Frequency: 6Hz

CALI| Calibration Icon: (See page 14 for calibration instructions)
RCFS| Reset Factory Setting Icon: (See page 15 for reset instructions)
HI| High CO2 Icon: Indicated CO2 levels greater than 5%
**| Alarm Icon: Appears after AL1 is triggered and will remain on display while the monitor is in alarming state
**
| Ventilation Icon: CO2 Levels exceed AL2 and Relay2 has been triggered.

Specifications

CO2 Specification

Measurement Range| 0 – 50,000ppm (5%) display
Display Resolution| 10ppm at 0~10,000ppm; 0.01% at 1-5%
Accuracy| +/-200ppm or +/-10% reading
Pressure Dependence| Auto pressure compensation, built in barometer. (50 to 110 kPa)
Response Time| CO2: <2min by 90%
CO2 AL1 (TWA )| 5000TWA
CO2 AL2| 5000ppm Default (5000ppm, 1.0%, 1.5%, 2.0%, 2.5%, 3.0%.)
CO2 AL3| 3.0% Default (2.0%, 2.5%, 3.0%, 3.5%, 4.0%)
Sound Alarm| 80db@10cm
Warm-Up Time| <60 seconds at 22°C
Monitor Specification
Power Input| 9~32VDC (12~24VDC recommended), 2A.
Backup Battery| 6VDC (5.4V~7.0V), recommended capacity is 12AH
Relay 1| Dry contact relay controlled by AL1 (2Amp) (NO or NC)
Relay 2| Dry contact relay controlled by AL2 (2Amp) (NO or NC)
Relay 3| Dry contact relay controlled by AL3 (2Amp) (NO or NC)
4-20mA CO2| CO2: Range 0-50,000ppm
4-20mA TEMP| Temp: Range 32 to 122° F (0-50°C)
Dimensions| 8.25-inch x 7.8-inch x 3-inch
Weight| 1.5lbs (Monitor only)
Ingress Protection| IP64
Temperature Specification:
Temperature Range| 32°F to 122°F (0°C to 50°C)
Display Resolution| 0.1°F (0.1°C)
Display Options| °C/°F
Accuracy| Reading represents device temperature (NOT environment)
Response Time| 20-30 minutes (Enclosure must equalize with environment)
Operating Conditions:
Temperature| 32°F to 122°F (0°C to 50°C)
Humidity Range| 0 ~ 95% RH non-condensing
Storage Conditions:
Storage Temperature| -4°F to 140°F (-20°C to 60 °C)

Dimensional Drawings

(Dimensions are in inches)

CO2METER-CM-900-Industrial-CO2-Detector-fig- \(2\)

Installation

Choosing Mounting Location
The CM-900 is designed to withstand harsh environments that would compromise other comparable safety monitors. Varying temperature, humidity, and dust/debris levels will not negatively impact the performance of the CM-900. For optimal use, a few considerations should be reviewed while selecting a mounting location:

  • Avoid a location that risks high pressure washdown directed at the monitor.
  • Avoid a location that would subject the monitor to impact or continuous vibration.
  • Mount the monitor 12 inches from the ground.
  • Avoid low/high temperature applications without consulting with a product specialist.
  • Be sure to mount in a location where 12~24VDC is available to power the monitor.

Mounting Hole Pattern
(Dimensions are in inches) CO2METER-CM-900-Industrial-CO2-Detector-fig-
\(5\)

Wiring

The CM-900 can be hardwired using (1 of 2) available accessories purchasable with the monitor. The CM-900-CON or the CM-900-CBL are available to wire and configure the monitor based on the requirements of the installation. The following diagram represents the pinout of the 16pin connector located on the bottom of the monitor. Once the cable or connector is properly wired and verified with the below diagram, remove the weather cap from device connector and mate the cable or connector. The connection can be confirmed with press fit and snap sound. The CM-900 is now ready to be powered and begin taking measurements.

Position Function Wire Color
1. (Temp) 4~20mA White
2. GND Green
3. (CO2) 4~20mA Yellow/Brown
4. Battery – Blue
5. Battery + 6VDC 7V max Brown
6. GND Black
7. 12-24 VDC IN Red
8. Relay3_NO Yellow
9. Relay3_COM Grey
10. Relay3_NC Pink
11. Relay2_NO Violet
12. Relay2_COM Grey/Pink
13. Relay2_NC Red/Blue
14 Relay1_NO White/Green
15. Relay1_COM Brown/Green
16. Relay1_NC White/Yellow

CO2METER-CM-900-Industrial-CO2-Detector-fig- \(7\)

Operation

Start-up
Verify that the CM-900 is properly wired, and 12-24VDC power is being supplied to the correct pin positions in the mating connector (see page 10). Check all wiring connections before powering. After power-up, the monitor provides accurate CO2 measurements after a 5 second warm up.

Quick Test the System

  1. Apply 5% Carbon Dioxide to the vents on the side of the device. Check that all alarms trigger and the display will eventually read HI.
  2. Alm1 will trigger Relay 1.
  3. Alm2 will trigger Relay 2.
  4. Alm3 will trigger Relay 3 .
  5. The device will sound and flash audible and visual alarms.
  6. If a Strobe Siren is connected, it will sound and flash.
  7. Remove gas supply.
    Allow 5 minutes for the device to come out of the HI CO2 alarm status.

Unlocking/Locking Settings

  1. Press Up & Enter button for 10 seconds.
  2. Press Mode until Aln is displayed.
  3. Use Up/Down arrow to change lock to unlock.
  4. Press Enter to save.CO2METER-CM-900-Industrial-CO2-Detector-fig- \(8\)

Configuring AL1

  1. AL1 is hard set to 5000TWA.

Configuring AL2

  1. Press Mode until the “AL2” & “CO2” icon flash
  2. Press Enter to select alarm 2. AL2 level will now flash.
  3. Use Up/Down arrow to select new alarm level.
  4. Press Enter to confirm.CO2METER-CM-900-Industrial-CO2-Detector-fig- \(9\)

Configuring AL3

  1. Press Mode until the “AL3” & “CO2” icon flash
  2. Press Enter to select alarm 3. AL3 level will now flash.
  3. Use Up/Down arrow to select new alarm level.
  4. Press Enter to confirm.CO2METER-CM-900-Industrial-CO2-Detector-fig- \(10\)

Latch ON/OFF

  1. Press Up & Enter button for 10 seconds
  2. Change to Advance Mode by pressing Mode, and choose Lat Mode
  3. Press Up/Down to set Latch Mode On or Off.
  4. Press Enter to SaveCO2METER-CM-900-Industrial-CO2-Detector-fig- \(11\)

(Fault light will keep flashing if AL3 is activated, indicating unit went into alarm status.)

Baro ON/OFF

  1. Press Up & Enter button for 10 seconds
  2. Press Mode, and choose Baro Mode
  3. Press Up/Down to set Baro Mode On/Off.
  4. Press Enter to Save.CO2METER-CM-900-Industrial-CO2-Detector-fig- \(12\)

Calibration

  1. Flow 100% Pure Nitrogen (N2) (0% CO2) into one of the 2 venting slots on the side of the aluminum enclosure. Wait 3-5 minutes before starting calibration, then execute the “ZEro” calibration. (Continue to flow calibration gas throughout entire process)
  2. Press Mode until CALI is flashing in small print under the CO2 reading.
  3. Press Enter to view the calibration settings.
  4. “ZEro” and “CO2” will be flashing.
  5. Press Enter again to begin the calibration. “CALIBRATING” will begin flashing. (Continue to flow N2 throughout the entire calibration)
  6. After approximately 3 minutes, “PASS” or “FAIL” will be displayed.
  7. If “PASS” press Enter to save.
  8. If “FAIL” repeat the process.
  9. If “FAIL” more than twice, contact CO2Meter technical support.CO2METER-CM-900-Industrial-CO2-Detector-fig- \(13\)

System Test

  1. Press Mode until the “DIAG” icon flashes
  2. Press Enter, the five LEDs will blink, and the buzzer will sound.CO2METER-CM-900-Industrial-CO2-Detector-fig- \(14\)

Factory Reset

  1. Press Mode until the “ReFactSet” icon flashes.
  2. Press Enter Up/Down to choose either “Yes” or “No”.
  3. Press Enter again to save the setting or press Mode to quit the setting.CO2METER-CM-900-Industrial-CO2-Detector-fig- \(15\)

Maintenance

  • The CM-900 is a low maintenance safety monitor that requires little maintenance after initial installation. It is recommended to calibrate the internal NDIR CO2 Sensor annually. This calibration can be completed in the field, or the monitor can be returned to CO2Meter to perform the calibration. A calibration certificate will be provided with every calibration service.
  • Be sure to ask a CO2Meter technician for more information.

Fault Codes

Fault Icon/Code Indicator Reason Suggested Actions
Er3 “Er3” flash, Fault LED blink Temperature reading out of temperature
range. This error will disappear when the temperature returns to the range

between 0°C and 50°C (32°F to 122°F)
Er5| “Er5” flash, Fault LED blink| System data error.| Power cycle or press the reset button. IF the Er5 displays again, contact CO2Meter.
Er7| “Er7” flash, Fault LED blink| Sensor communication issue.| Press reset button or power cycle the unit.

Warranty

  • CO2Meter warrants the products to be substantially free of defects in workmanship and materials when used for their intended purposes for a period of either one (1) year or ninety (90) days from the date of shipment of the applicable products as specified for each product on the individual product pages located at www.co2meter.com (the
    “Manufacturer’s Limited Warranty”). No employee or representative of CO2Meter may alter the terms of the Manufacturer’s Limited Warranty verbally or in writing.

  • To take advantage of the Manufacturer’s Limited Warranty, the product must be returned to us at your expense. If after examination, we determine that the product is defective, CO2Meter at its election will repair or replace the defective product. The foregoing is the customer’s exclusive remedy in the event of a valid warranty claim.

  • Notwithstanding anything contained herein, the Manufacturer’s Limited Warranty shall not apply to: (i) any product that has been customized, altered, or repaired by any person not authorized to do so by CO2Meter; or (ii) any product that has been subject to misuse, neglect, or accidental damage. This warranty does not apply to calibration of any product.

  • In the event of an alleged warranty claim, you agree to contact us to request a return authorization prior to returning any products to us. We will only honor valid warranty claims of which we have been given notice prior to the expiration of the applicable limited warranty period. You agree to comply with all commercially reasonable rules and policies governing warranty claims which we may institute from time to time. Such rules and policies may be located at www.co2meter.com/pages/faq#warranty .

  • If you return a product to us, and we determine in our reasonable discretion that it falls within an exception to the Manufacturer’s Limited Warranty as described herein, we will have no obligation to you other than to return the product(s) at your sole cost and expense.

  • It is our customer(s) responsibility to share your application with the CO2Meter sales team so they can help identify any potential issues your application may cause with our devices. Important information to share will be: expected CO2 concentration, temperature, humidity, and any other particles or gases in your application. Applications with interfering gases can damage our sensors and devices. Those applications with high humidity can damage the electronics and the CO2 sensors beyond repair.

Product Returns

  • If any Product fails under normal use, you may return it to us, by first submitting a customer case support ticket (submission here). Policies and procedures for returns and refunds related to the same are located at www.co2meter.com/pages/faq .
  • All returns for refund after thirty (30) days from shipment of the applicable product will incur a 25% re-stocking fee. No product will be accepted for return or refund after 45 days from shipment.
  • Non-refundable clause, if a product is refunded, and your purchase included a calibration certificate charge, due to the calibration being a service, not an actual product item your refund will not include the certification charge in your refund.

Support
If the User Manual/ Installation guide above does not contain the needed operation, installation or troubleshooting information, please contact CO2Meter at: [email protected]

Contact Us

  • We are here to help! For information or technical support, please contact us using the information below. For further guidelines on CO2Meter Terms & Conditions, click here.
    [email protected]

  • (386) 256‐4910 (Technical Support)

  • (386) 872‐7665 (Sales)

  • www.CO2Meter.com

CO2Meter

  • 105 Runway Drive
  • Ormond Beach, FL
  • 32174 USA
  • 877-678-4259
  • M-F 8:30am-5pm EDT

References

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